/*import java.util.Scanner;
public class Test{
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = a / 3600;
        int h = a % 3600;
        int p = h / 60;
        System.out.println(b + ":" + p + ":" + h);
    }
}*/


/*
public class Test{
    static int cnt = 6;
    static{
        cnt += 9;
    }
    public static void main(String[] args){
        System.out.println("cnt = " + cnt);
    }
    static{
        cnt /=3;
    };
}*/



/*public class Test{
    public String toString() {
        System.out.print("aaa");
        return "bbb";
    }

    public static void main(String[] args) {
        Test test = new Test();
        System.out.println(test);
    }
}*/





